#include <stdio.h>

int main()
{
    float sn=100.0,hn=sn/2;
    int n;
    for(n=2;n<=10;n++)
    {
        sn=sn+2*hn;
        hn=hn/2;
    }
    printf("the total of road is %f\n",sn);
    printf("the tenth is %f meter\n",hn);
}